刚才我们学习了两个助动词 should 和 must, 还有它们的否定式 shouldn't 和 mustn't, 现在我们来学习另外一个意思跟 must 相同的词组 have to. 这 个词组也是用来表示非作某件事不可. 比方有一句话: "你非得清理院子 吗?" 英文可以这样说: Do you have to clean the yard? 另外一句话: "你非 得工作挣零用钱吗?" 英文可以这样说: Do you have to work to earn your allowance?

have to 的否定式 don't have to 跟 has to 的否定式 doesn't have to 都可以 用来表示不一定非得作某件事, 而有其他选择. 在下面一组练习里, 我们 要多学学这类句子. 每个句子我们还是念两遍, 还是请你听一遍, 重复一

遍:

M: I don't have to buy records. I can listen to the radio.

F: I don't have to buy records. I can listen to the radio.

M: You don't have to go to the movies. You can stay home and watch television.

F: You don't have to go to the movies. You can stay home and watch television.

M: We don't have to take the train. We can take the bus.

F: We don't have to take the train. We can take the bus.

M: They don't have to drink coffee. They can drink tea.

F: They don't have to drink coffee. They can drink tea.

M: He doesn't have to wear a white shirt. He can wear a blue one.

F: He doesn't have to wear a white shirt. He can wear a blue one.

M: She doesn't have to cook. She can go out to eat.

F: She doesn't have to cook. She can go out to eat.

五.听短文回答问题

首先还是请你听一段文章, 内容是说彼得跟琳达兄妹两个人应该帮着作 些什么家事才能每星期拿零用钱.

现在请你注意听:

Every week Peter and Linda receive five dollars from their parents. This money is their weekly allowance. It is not a gift. Peter and Linda must work for the family to earn the money. Peter takes out the garbage and cleans the yard around the house. He should do it everyday, but sometimes he forgets. Linda helps her mother with the cooking. She also washes the dishes after dinner. Peter and Linda don't have to use their money for food. They use it for their entertainment. Sometimes they go to the movies. Sometimes they buy records. Each week they save some of their money to buy something more expensive.

Every week Peter and Linda receive five dollars from their parents. This money is their weekly allowance. It is not a gift. Peter and Linda must work for the family to earn the money. Peter takes out the garbage and cleans the yard around the house. He should do it everyday, but sometimes he forgets. Linda helps her mother with the cooking. She also washes the dishes after dinner. Peter and Linda don't have to use their money for food. They use it for their entertainment. Sometimes they go to the movies. Sometimes they buy records. Each week they save some of their money to buy something more expensive.

现在要请你回答今天测验的三个问题. 在你回答以后, 请你听老师说 正确答案, 看你答对了没有.

下面是第一个问题:

M: What should Peter do to earn his weekly allowance?

F: He should take out the garbage and clean the yard around the house.

Every day I have to get up early.First I must clean the drinking bottles for my daughter , and prepare the breakfast for my family.When everything is done, it is a little late,l should drive to my job so fast.After work, I have to go the suppermarket to buy something for the dinner.But I don't have to cook the dinner.

I have to leave for work at 7:00 every day, so I can catch a bus at 7:15, it takes me about 10 minutes to walk to go to the bus stop. but my wife doesn't have to leave home so early, because she's office is very near from our home.

every month we receive our salary from our boss.this money is our monthly salary,it is not an allowance. we must work for the campany to earn the money.someone sell products,they should calls customers everyday,but sometimes they not do it. someone devise product ,they should cartridge for every product,but sometimes they forgets.we have to use our money for life.we use it for shopping or buy others something.

Everyday morning I have to take my son to his kindergarten, and then I have to buy something for the dinner. I also need to do all of the housework, when it is 4:30am, I should to pick my son home.Then, I should prepair for our dinner, after the dinner, I will teach my son for his study, and around 10:00AM, I must take him to bathe, then I have to help him to fall asleep. I mustn't waste my life like this, I hate it. I should go out to find a job.

I want to have a wonderful future. So now, I should study hard to improve my energy. That's to say, I shouldn't waste time to play games. Then I must control myself and make a determination firmly. I mustn't do it just when I'm exciting. Preventing dropping up on the way, I have to make some projects to finish strictly. Of course, it doesn't have to be bald and boring.